@article{PIM_1980_N_S_28_42_a21,
     author = {S.R.H. Rizvi and O.P. Juneja},
     title = {A {Contribution} to {Best} {Approximation} in the l2 - {Norm}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {167 },
     publisher = {mathdoc},
     volume = {_N_S_28},
     number = {42},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1980_N_S_28_42_a21/}
}